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2013-11-20Suppress false valgrind warnings caused by sctp_getpaddrsSverker Eriksson
2013-11-11Clean up address family handling towards ErlangRaimo Niskanen
2013-11-07Implement prim_inet:socknames/1,2 and prim_inet:peernames/1,2Raimo Niskanen
2013-09-05Merge branch 'raimo/fix-signedness-flaws-in-efile_drv' into maintRaimo Niskanen
* raimo/fix-signedness-flaws-in-efile_drv: Fix EV_* macros and functions signedness flaws
2013-09-04Merge branch 'raimo/linux-network-namespace-sockopt/OTP-11157' into maintRaimo Niskanen
* raimo/linux-network-namespace-sockopt/OTP-11157: Document socket option 'netns' Rudimentary test Make netns option value a string Implement netns for SCTP + bugfixes Implement netns option for TCP and UDP Implement emulator netns support for TCP and UDP
2013-09-02Fix EV_* macros and functions signedness flawsRaimo Niskanen
2013-08-23Create better distribution of files over async threadsPatrik Nyblom
The actual port id is used to create a key from the pointer value which is the ErlDrvPort. To do this a new driver api function driver_async_port_key is added and the driver API minor version is updated. The documentation is updated and the faulty description of how to spread ports over async threads is updated to use the new API. Testcase also added.
2013-08-23Add debug functionality to retrieve async keyPatrik Nyblom
2013-08-20erts: Fix bug in translating ev macros to functionsLukas Larsson
2013-08-13erts: Refactor non-pure macros to functionsLukas Larsson
This is needed as some gcc versions seems to optimize this undefined behaviour in a way which breaks this code.
2013-07-17Implement netns for SCTP + bugfixesRaimo Niskanen
2013-07-17Implement emulator netns support for TCP and UDPRaimo Niskanen
2013-06-12Update copyright yearsBjörn-Egil Dahlberg
2013-05-31kernel: Fix bug in file:pwrite for large data setsSverker Eriksson
Bug introduced in a73414d2e8ad03538 and never released.
2013-05-16Merge branch 'rickard/inet_opts/OTP-11075' into maintRickard Green
* rickard/inet_opts/OTP-11075: Make high_msgq_watermark and low_msgq_watermark generic inet options Conflicts: erts/preloaded/ebin/prim_inet.beam
2013-05-06Make high_msgq_watermark and low_msgq_watermark generic inet optionsRickard Green
2013-03-27Merge branch 'lukas/erts/efile_delayed_write_fix/OTP-10984' into maintLukas Larsson
* lukas/erts/efile_delayed_write_fix/OTP-10984: Do driver_deq in worker threads instead of async_ready
2013-03-13Do driver_deq in worker threads instead of async_readyLukas Larsson
Doing it in async_ready was needed before the pdl was introduced, but now with the pdl the deq no longer needs the port lock to protect it. This was not an issue when async_ready was called in the worker thread, but now (R15B) that it is signalled back to the scheduler, some very nasty race conditions could occur when using driver_timer and async jobs.
2013-03-04erts: Fix void * arithmeticBjörn-Egil Dahlberg
2013-03-04erts: gcc ansi does not allow 'inline'Björn-Egil Dahlberg
2013-03-04erts: Use block comments - ansi styleBjörn-Egil Dahlberg
2013-02-22Merge branch 'egil/win-efile-bugfix/OTP-10890'Björn-Egil Dahlberg
* egil/win-efile-bugfix/OTP-10890: erts: Use correct type for ReadFile bytes read
2013-02-22Update copyright yearsBjörn-Egil Dahlberg
2013-02-22erts: Use correct type for ReadFile bytes readBjörn-Egil Dahlberg
Using a 64bit type for bytes read will not always clear the higher bits.
2013-02-21Merge branch 'sverk/tcp-exit_on_close-false'Sverker Eriksson
* sverk/tcp-exit_on_close-false: inet_drv: Fix condition to reject INET_REQ_IGNOREFD for UDP and SCTP A stab at fixing bug with {exit_on_close,false} not working
2013-02-15invoke_read_line now remembers read_ahead settingsLukas Larsson
2013-02-11erts: Fix memory leak in efile_drv.cSverker Eriksson
Seems to happen with async threads and when user closes the file explicitly before the port is closed.
2013-02-07inet_drv: Fix condition to reject INET_REQ_IGNOREFD for UDP and SCTPSverker Eriksson
2013-01-29A stab at fixing bug with {exit_on_close,false} not workingSverker Eriksson
when invalid packets are received.
2013-01-25Merge branch 'pan/fix-compiler-warnings-clang-and-new-gcc'Patrik Nyblom
* pan/fix-compiler-warnings-clang-and-new-gcc: Fix compiler warnings from GCC 4.7.1 on ARCH Linux Fix clang compiler warnings on FreeBSD in erts
2013-01-25Update copyright yearsBjörn-Egil Dahlberg
2013-01-23Fix clang compiler warnings on FreeBSD in ertsPatrik Nyblom
The following are deliberately left, as I have only a list of compiler warnings and no system to test on: hipe/hipe_x86_signal.c:264:5: warning: no previous prototype for function '_sigaction' [-Wmissing-prototypes] int __SIGACTION(int signum, const struct sigaction *act, struct sigaction *oldact) ^ hipe/hipe_x86_signal.c:222:21: note: expanded from macro '__SIGACTION' ^ 1 warning generated. sys/unix/sys_float.c:835:16: warning: declaration of 'struct exception' will not be visible outside of this function [-Wvisibility] matherr(struct exception *exc) ^ sys/unix/sys_float.c:835:1: warning: no previous prototype for function 'matherr' [-Wmissing-prototypes] matherr(struct exception *exc) ^ 2 warnings generated. drivers/unix/unix_efile.c:1504:11: warning: implicit declaration of function 'sendfile' [-Wimplicit-function-declaration] retval = sendfile(in_fd, out_fd, *offset, SENDFILE_CHUNK_SIZE, ^ 1 warning generated.
2013-01-23Make _oct counters in inet_drv exactly 64 bitsPatrik Nyblom
Also, on 64 bit architectures, use 64 bit int's for the counters and be specific about the counter variables sizes utilizing datatypes from sys.h.
2013-01-23Fix inet_drv _oct counters 32bit/64bit bugPatrik Nyblom
2013-01-23Merge branch 'pan/R16/redhat_workaround'Patrik Nyblom
* pan/R16/redhat_workaround: Clean up and make the fix work on windows. Add workaround for CentOS/RedHat writev bug to inet_drv OTP-10747
2013-01-23Alternative solution to the efile_drv crash on exitPatrik Nyblom
2013-01-11Merge branch 'fdm/file-allocate/OTP-10680'Björn-Egil Dahlberg
* fdm/file-allocate/OTP-10680: Update preloaded prim_file.beam erts: Fix xcomp configure for fallocate Add file:allocate/3 operation
2013-01-09Add file:allocate/3 operationFilipe David Manana
This operation allows pre-allocation of space for files. It succeeds only on systems that support such operation. The POSIX standard defines the optional system call posix_fallocate() to implement this feature. However, some systems implement more specific functions to accomplish the same operation. On Linux, if the more specific function fallocate() is implemented, it is used instead of posix_fallocate(), falling back to posix_fallocate() if the fallocate() call failed (it's only supported for the ext4, ocfs2, xfs and btrfs file systems at the moment). On Mac OS X it uses the specific fcntl() operation F_PREALLOCATE, falling back to posix_fallocate() if it's available (at the moment Mac OS X doesn't provide posix_fallocate()). On any other UNIX system, it uses posix_fallocate() if it's available. Any other system not providing this system call or any function to pre-allocate space for files, this operation always fails with the ENOTSUP POSIX error.
2013-01-09Fix fd leak when using async thread poolFilipe David Borba Manana
When using the async thread pool, if an erlang process asks to open a file and it gets shutdown/killed while the file:open/2 call hasn't returned, it's possible to leak a file descriptor against the target file. This happens because when the file driver is stopped (file_stop() function is called), an async thread is executing, about to execute, or executed already the invoke_open() function. After file_stop() is called, the file_async_ready() function will not run, and this function is responsible for setting desc->fd with the file descriptor that invoke_open() got. The file_stop() call closes desc->fd if it refers to a valid file descriptor, which is not the case here, because this function was called before file_async_ready() could run. This leak is easily reproducile in a GNU/Linux system using the following test code: -module(t). -export([t/1]). t(N) -> Pid = spawn_link(fun() -> process_flag(trap_exit, true), loop(N) end), Ref = erlang:monitor(process, Pid), receive {'DOWN', Ref, _, _, _} -> ok end. loop(0) -> ok; loop(N) -> Name = integer_to_list(N), Server = self(), Pid = spawn(fun() -> Server ! continue, {ok, FdW} = file:open(Name, [raw, write]), {ok, FdR} = file:open(Name, [raw, read]), % Optional close calls, with or without them % it makes no difference. %ok = file:close(FdW), %ok = file:close(FdR), ok end), receive continue -> ok end, exit(Pid, shutdown), loop(N - 1). Running this code with a few iterations is enough to very often notice, with the lsof command, that the beam.smp process is holding forever file descriptors open. This issue doesn't happen if the async thread pool is not used. Example: $ erl +A 4 Erlang R15B03 (erts-5.9.3) [source] [64-bit] [smp:4:4] [async-threads:4] [hipe] [kernel-poll:false] Eshell V5.9.3 (abort with ^G) 1> c(t). {ok,t} 2> os:getpid(). "31975" 3> t:t(20). ok In a separate shell: $ lsof -p 31975 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME beam.smp 31975 fdmanana cwd DIR 8,18 22736896 32563204 /home/fdmanana/git/hub/otp/tmp beam.smp 31975 fdmanana rtd DIR 8,1 4096 2 / beam.smp 31975 fdmanana txt REG 8,1 7600263 1835126 /opt/r15b03/lib/erlang/erts-5.9.3/bin/beam.smp beam.smp 31975 fdmanana mem REG 8,1 7220736 2497283 /usr/lib/locale/locale-archive beam.smp 31975 fdmanana mem REG 8,1 10280 2505021 /usr/lib/libsctp.so.1.0.11 beam.smp 31975 fdmanana mem REG 8,1 1811128 917795 /lib/x86_64-linux-gnu/libc-2.15.so beam.smp 31975 fdmanana mem REG 8,1 31752 917803 /lib/x86_64-linux-gnu/librt-2.15.so beam.smp 31975 fdmanana mem REG 8,1 135366 917799 /lib/x86_64-linux-gnu/libpthread-2.15.so beam.smp 31975 fdmanana mem REG 8,1 159200 921249 /lib/x86_64-linux-gnu/libtinfo.so.5.9 beam.smp 31975 fdmanana mem REG 8,1 1030512 917962 /lib/x86_64-linux-gnu/libm-2.15.so beam.smp 31975 fdmanana mem REG 8,1 14768 917702 /lib/x86_64-linux-gnu/libdl-2.15.so beam.smp 31975 fdmanana mem REG 8,1 149280 917974 /lib/x86_64-linux-gnu/ld-2.15.so beam.smp 31975 fdmanana 0u CHR 136,1 4 /dev/pts/1 beam.smp 31975 fdmanana 1u CHR 136,1 4 /dev/pts/1 beam.smp 31975 fdmanana 2u CHR 136,1 4 /dev/pts/1 beam.smp 31975 fdmanana 3r FIFO 0,8 1298297 pipe beam.smp 31975 fdmanana 4w FIFO 0,8 1298297 pipe beam.smp 31975 fdmanana 5r FIFO 0,8 1298298 pipe beam.smp 31975 fdmanana 6w FIFO 0,8 1298298 pipe beam.smp 31975 fdmanana 7w REG 8,18 0 32564173 /home/fdmanana/git/hub/otp/tmp/20 beam.smp 31975 fdmanana 8w REG 8,18 0 32564176 /home/fdmanana/git/hub/otp/tmp/16 beam.smp 31975 fdmanana 9w REG 8,18 0 32564177 /home/fdmanana/git/hub/otp/tmp/15 beam.smp 31975 fdmanana 10w REG 8,18 0 32564179 /home/fdmanana/git/hub/otp/tmp/12 beam.smp 31975 fdmanana 11w REG 8,18 0 32564180 /home/fdmanana/git/hub/otp/tmp/11 beam.smp 31975 fdmanana 12w REG 8,18 0 32564205 /home/fdmanana/git/hub/otp/tmp/10 beam.smp 31975 fdmanana 13w REG 8,18 0 32564182 /home/fdmanana/git/hub/otp/tmp/8 beam.smp 31975 fdmanana 14w REG 8,18 0 32564183 /home/fdmanana/git/hub/otp/tmp/7 beam.smp 31975 fdmanana 15w REG 8,18 0 32564186 /home/fdmanana/git/hub/otp/tmp/3
2012-12-20Clean up and make the fix work on windows.Patrik Nyblom
Thanks to Tony Rogvall.
2012-12-20Add workaround for CentOS/RedHat writev bug to inet_drvPatrik Nyblom
2012-12-07Merge branch 'rickard/port-optimizations/OTP-10336' into ↵Rickard Green
rickard/r16/port-optimizations/OTP-10336 * rickard/port-optimizations/OTP-10336: Change annotate level for emacs-22 in cerl Update etp-commands Add documentation on communication in Erlang Add support for busy port message queue Add driver callback epilogue Implement true asynchronous signaling between processes and ports Add erl_drv_[send|output]_term Move busy port flag Use rwlock for driver list Optimize management of port tasks Improve configuration of process and port tables Remove R9 compatibility features Use ptab functionality also for ports Prepare for use of ptab functionality also for ports Atomic port state Generalize process table implementation Implement functionality for delaying thread progress from unmanaged threads Conflicts: erts/doc/src/erl_driver.xml erts/doc/src/erlang.xml erts/emulator/beam/beam_bif_load.c erts/emulator/beam/beam_bp.c erts/emulator/beam/beam_emu.c erts/emulator/beam/bif.c erts/emulator/beam/copy.c erts/emulator/beam/erl_alloc.c erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_bif_port.c erts/emulator/beam/erl_bif_trace.c erts/emulator/beam/erl_init.c erts/emulator/beam/erl_message.c erts/emulator/beam/erl_port_task.c erts/emulator/beam/erl_process.c erts/emulator/beam/erl_process.h erts/emulator/beam/erl_process_lock.c erts/emulator/beam/erl_trace.c erts/emulator/beam/export.h erts/emulator/beam/global.h erts/emulator/beam/io.c erts/emulator/sys/unix/sys.c erts/emulator/sys/vxworks/sys.c erts/emulator/test/port_SUITE.erl erts/etc/unix/cerl.src erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/prim_inet.beam erts/preloaded/src/prim_inet.erl lib/hipe/cerl/erl_bif_types.erl lib/kernel/doc/src/inet.xml lib/kernel/src/inet.erl
2012-12-07Add support for busy port message queueRickard Green
2012-12-03Add erl_drv_[send|output]_termRickard Green
2012-10-31Merge branch 'raimo/IPV6_V6ONLY/OTP-8928'Raimo Niskanen
* raimo/IPV6_V6ONLY/OTP-8928: kernel: Document socket option ipv6_v6only kernel: Add test cases for socket option ipv6_v6only erts,kernel: Implement socket option ipv6_v6only in erlang code erts: Implement socket option IPV6_V6ONLY erts: Add configure test for IPV6_V6ONLY
2012-10-31erts: Implement socket option IPV6_V6ONLYRaimo Niskanen
2012-10-08Set new peeled off SCTP socket to nonblocking socketJonas Falkevik
Peeloff feature of SCTP association creates a new socket which is not set to nonblocking. Function for receving data is shared with udp which has a default loop when reading packets which is set to 5. Calling the receive function more then once, is fine as long as there are more data to receive or socket are nonblocking. Set new peeled off socket to be nonblocking to prevent a erlang vm hangup.
2012-08-30Merge branch 'maint'Patrik Nyblom
2012-08-30Teach VM not to dump core on long pathnamesPatrik Nyblom
Long input paths (longer than MAX_PATH) would get copied into a buffer of size MAX_PATH for read_link and altname in efile_drv. Also fixed misuse of size_t parameter as wchar_t * string length in win_efile:efile_readlink.
2012-08-28Merge branch 'maint'Sverker Eriksson
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